/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.antgroup.geaflow.dsl.runtime.traversal.path;

import com.google.common.collect.Sets;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

public abstract class AbstractSingleTreePath extends AbstractTreePath {

    /**
     * The request ids of this node belongs to.
     */
    protected Set<Object> requestIds;

    @Override
    public void setRequestId(Object requestId) {
        if (requestId == null) {
            requestIds = null;
        } else {
            requestIds = Sets.newHashSet(requestId);
        }
    }

    @Override
    public Set<Object> getRequestIds() {
        return requestIds;
    }

    @Override
    public void addRequestIds(Collection<Object> requestIds) {
        if (requestIds == null) {
            return;
        }
        if (this.requestIds == null) {
            this.requestIds = new HashSet<>();
        }
        this.requestIds.addAll(requestIds);
    }
}
